Struct Lamb 

#[non_exhaustive]
pub struct Lamb {
    pub pid: u32,
    pub name: String,
    pub label: Option<String>,
}

One process the OS reports as a descendant of a sheep.

Not the set of processes that die with the sheep: this is a parent-pid walk, where the stop ladder acts on the process group. A lamb that forks and exits leaves children re-parented to init, out of this list and still in the group; a setsid() grandchild stays in the list and leaves the group.

name is the executable’s name (node, sh), never argv, which carries credentials and would ride into shep describe --format json. Build one with Self::new.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

pid: u32

The lamb’s own pid.

name: String

The executable’s name, as the OS reports it. Never its command line.

label: Option<String>

What the sheep named this lamb on its shepherd channel, with a ChildMessage::LambLabel.

None when it sent none, or the shepherd predates labels. Never read from the OS, so the no-argv rule above still holds.

Implementations

impl Lamb

pub fn new(pid: u32, name: impl Into<String>) -> Self

One lamb, with no label.

pub fn with_label(self, label: impl Into<String>) -> Self

This lamb, carrying the sheep’s own label for it.

Trait Implementations

impl Clone for Lamb

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Lamb

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Lamb

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Lamb

impl PartialEq for Lamb

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Lamb

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Lamb